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In the Bayesian sense, I must now update my priors regarding life coming to Earth from another planet. I always gave that theory a very low probability, but now
by lkrubner 12y ago
In the Bayesian sense, I must now update my priors regarding life coming to Earth from another planet. I always gave that theory a very low probability, but now that its been demonstrated that some life can survive in space, I must admit the theory is somewhat more possible than I previously believed.
Also, does anyone know what "mm" stands for when they say these creatures are a maximum of 1.5mm long? I thought "millimeter" but that doesn't make sense in the context:
"They are never more than 1.5 mm long, and can only be seen with a microscope."
I can see things that are 1 millimeter with my own eyes, so what does "1.5 mm" mean? Could "nm" would have been nanometer, but that would be far too small, much smaller than a virus. I'm thinking they meant millionth of a meter?
- fraserharris 12y agoCopied from below: http://en.wikipedia.org/wiki/Tardigrade http://en.wikipedia.org/wiki/Tardigrade "The biggest adults may reach a body length of 1.5 mm (0.059 in), the smallest below 0.1 mm. Newly hatched tardigrades may be smaller than 0.05 mm."
- bashinator 12y agoThe are up to 1.5 millimeters long, and any detailed features of the animal can only be seen with a microscope.